From mboxrd@z Thu Jan 1 00:00:00 1970 From: Domenico Andreoli Subject: Re: HP J5600/J6750 64bit SMP CPU#1 stuck problems [was: Does there exists any 32bit-only PARISC SMP machines?] Date: Tue, 29 Oct 2013 14:31:07 +0100 Message-ID: <20131029133107.GA32231@glitch> References: <521F9848.4010404@gmx.de> <1377830541.2331.5.camel@dabdike> <20130903155643.GA1430@glitch> <20130904140705.GA30223@glitch> <20130904142847.GA2893@glitch> <52658989.5090508@gmx.de> <526590F0.8040504@gmx.de> <526C3CFF.2070005@gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: John David Anglin , linux-parisc , Dave Land To: Helge Deller Return-path: In-Reply-To: <526C3CFF.2070005@gmx.de> List-ID: List-Id: linux-parisc.vger.kernel.org On Sun, Oct 27, 2013 at 12:06:55AM +0200, Helge Deller wrote: > On 10/21/2013 10:39 PM, Helge Deller wrote: > >>> On 09/04/2013 04:28 PM, Domenico Andreoli wrote: > >>>>>>> J5600 is SMP capable in both 32bit and 64bit mode. > >>>>>>> mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace > >>>>>>> it down but can confirm it happens also on more recent kernels. > >>>>> I confirm that smp parisc64 v3.11 doesn't bring up both the cpus on my > >>>>> system but at least it boots one, something that didn't happen in some > >>>>> darker moments since 2.6.22. > >>>>> > >>>>> similar "SMP: CPU:1 is stuck." happens also with debian v3.10-parisc64-smp kernel. > >>>> BTW, this is the most detailed investigation I'm aware of: > >>>> https://lkml.org/lkml/2008/4/20/251 > > I think we finally found the reason and a fix for the "CPU:1 is stuck" problem :-) aaaand yes! > See the patch I've just sent to the mailing list: > [PATCH] parisc: Do not crash 64bit SMP kernels on machines with >= 4GB RAM > https://patchwork.kernel.org/patch/3099061/ mine has (and always had) exactly 4GB > It would be nice if those people who had problems could verify if this fixes it. > At least on the J6750 from Dave Land I was now able to successfully boot the 64bit SMP kernel. this fixes the issue for me > If you might be too lazy to build yourself a kernel, just try my 3.10.17-based installer image: > http://ftp.parisc-linux.org/debian-ports/unstable-boot-image/lifimage I've built a shiny v3.12-rc7 parisc64. Can't belive I'll get rid of those old 2.6.22 images and symlinks after all these years... Many thanks. Regards, Domenico